明朝成(chéng )化年间，朝纲腐败，奸(jiān )邪当道(dào )。西厂东厂为宦官把(bǎ )持，混淆黑(hēi )白，陷害忠良，朝野内外噤若寒蝉。时有赵(zhào )怀(huái )安（李连杰 饰）等流亡剑(jiàn )客(kè )挺(tǐng )身(shēn )而出，接连铲除(chú )东厂数名奸佞，致令阉贼胆战心惊。适值此时，风(fēng )头正劲的西厂